package com.heima.search.service.impl;

import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.search.dtos.HistorySearchDto;
import com.heima.model.user.pojos.ApUser;
import com.heima.search.pojos.ApUserSearch;
import com.heima.search.service.ApUserSearchService;
import com.heima.utils.thread.AppThreadLocalUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Sort;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;

import java.util.Date;
import java.util.List;

@Slf4j
@Service
public class ApUserSearchServiceImpl implements ApUserSearchService {

    @Autowired
    private MongoTemplate mongoTemplate;
    /**
     * 保存用户搜索历史记录
     *
     * @param keyword
     * @param userId
     */
    @Async
    @Override
    public void insert(String keyword, Integer userId) {
        // 1.查询当前用户搜索的关键词
        Query query = Query.query(Criteria.where("userId").is(userId).and("keyword").is(keyword));
        ApUserSearch apUserSearch = mongoTemplate.findOne(query, ApUserSearch.class);
        // 2.存在 更新创建时间
        if (apUserSearch!=null){
            apUserSearch.setCreatedTime(new Date());
            mongoTemplate.save(apUserSearch);
            return;
        }
        // 3.不存在，判断当前历史记录总数量是否超过10条
        apUserSearch = new ApUserSearch();
        apUserSearch.setUserId(userId);
        apUserSearch.setKeyword(keyword);
        apUserSearch.setCreatedTime(new Date());

        Query queryList = Query.query(Criteria
                .where("userid").is(userId))
                .with(Sort.by(Sort.Direction.DESC,"createdTime"));
        List<ApUserSearch> apUserSearchList = mongoTemplate.find(queryList, ApUserSearch.class);
        if (apUserSearchList==null || apUserSearchList.size() < 10){
            mongoTemplate.save(apUserSearch);
        }else {
            ApUserSearch lastUserSearch = apUserSearchList.get(apUserSearchList.size() - 1);
            mongoTemplate.findAndReplace(Query.query(Criteria.where("userId").is(lastUserSearch.getUserId())),apUserSearch);
        }
    }

    /**
     * 查询用户历史搜索记录
     *
     * @return
     */
    @Override
    public ResponseResult findUserSearch() {
        // 获取当前用户
        ApUser user = AppThreadLocalUtil.getUser();
        if (user==null){
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
        // 查询用户登录数据，按照时间顺序排列
        List<ApUserSearch> userHistorySearch = mongoTemplate.find(
                Query.query(Criteria
                        .where("userId").is(user.getId()))
                        .with(Sort.by(Sort.Direction.DESC,"createdTime"))
                ,ApUserSearch.class);
        return ResponseResult.okResult(userHistorySearch);
    }

    /**
     * 删除用户历史搜索记录
     *
     * @param dto
     */
    @Override
    public ResponseResult deleteUserSearch(HistorySearchDto dto) {
        // 1.检测参数
        if (dto.getId()==null)
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        // 2.判断是否登录
        ApUser user = AppThreadLocalUtil.getUser();
        if (user==null)
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        // 3.删除
        mongoTemplate.remove(Query.query(Criteria.where("userId").is(user.getId()).and("id").is(dto.getId())),ApUserSearch.class);
        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
    }

}
